US2595040A

US2595040A - Cop winding machine

Info

Publication number: US2595040A
Application number: US48662A
Authority: US
Inventors: Alfred R Wood
Original assignee: Singer Co
Current assignee: Singer Co
Priority date: 1948-09-10
Filing date: 1948-09-10
Publication date: 1952-04-29
Anticipated expiration: 1969-04-29

Description

April 29, 1952 A. R. WOOD 2,595,040

' COP WINDING MACHINE Filed Sept. 10, 1948 3 Sheets-Sheet l .lnventoz AZ red 3?. Z0000? if A? J Aprifi 1952 A. R. WOOD 2,595,040

COP WINDING MACHINE Filed Sept. 10, 1948 s Sheets-Sheet 2 "IIIIITIIIIIIIIII" lll llil) April 29, 1952 A. R. WOOD 2,595,040

COP WINDING MACHINE Filed Sept. 10, 1948 3 Sheets-Sheet 3 "a; 5 F36 l 4134 I s V 48a Azf d 2 /3 2 9 292966 7 r6 00 j :2? 9 gz'oz/eqy Patented Apr. 29, 1952 UNITED STATES N Free COP VIINDING MACHINE Application September 10, 1948, Serial No. 48,662

7 Claims. 1

This invention relates to cop winding machines of the type adapted to produce cops of thread wound by the so-called Fiji or Wardwell method of winding, in which, after the cop has been started on a suitable spindle, each turn of the thread overlies a previous turn and thereby binds together all the turns of the thread and prevents spilling. This method of winding is shown and described in the United States reissue patent to S. W. Wardwell, Jr., No. 11,856, September 18, 1900.

This invention has as an object to provide an improved and simplified machine for winding cops in the above described manner.

Another object of the invention is to provide a relatively small cop winding machine which may be driven from any suitable source of power or which may be applied to a sewing machine, as an attachment, and actuated from the usual machine-driving belt, and which will automatically wind a cop during the operation of the machine and having the new cop available when required by the sewing machine.

Still another object of the invention is to provide an improved cop winding machine which may be put into operation by an operator and which will automatically be thrown out of operation and brought to rest when the winding of the cop has been completed.

A still further object is to provide in an automatic cop winding machine, simple and eifective manually actuated means for removing a completed cop from the machine and for severing the thread between the completed cop and the source of threadsupply.

With the above and other objects in view, as will hereinafter appear, the invention comprises the devices, combinations and arrangements of parts hereinafter set forth and illustrated in the accompanying drawings of a preferred embodiment of the invention, from which the several features of the invention and the advantages attained thereby will be readily understood by those skilled in the art.

In the drawings, v

Fig. l is a front elevation of the improved cop winder. V

Fig. 2 is a left end view thereof.

Fig. 3 is a plan view.

Fig. i is a right end view with the driving pulley shown, in full lines, as contacting a driving element and, in dotted lines, in engagement with a suitable brake.

Fig. is a rear elevation of the improved cop winder, with portions thereof broken away, and I 2 a thread-laying finger shown in full and dotted lines in its two extreme positions.

Fig. 6 is a vertical section on the line 6-6 of Fig. 1.

Fig. '7 is a detail sectional view on the line 'l-l of Fig. 4 showing a frame locking means hereinafter described, the parts being shown in the positions they occupy when the machine is in operation.

Fig. 8 is a fragmentary sectional view of the frame-locking means, showing the parts in the positions they occupy when the machine is at rest.

Referring more specifically to the'drawings,

the invention is disclosed as embodied in a cop winding machine comprising a base I which may be secured to any suitable support S, as for example, by screws 2 passed through apertures 3 (Fig. 3) and threaded into the support. The base is formed with upstanding lugs l which carry pintles 5 on which is mounted, for slight oscillatory 'motion, a U-shaped frame F comprising a bottom portion 6 and upstanding arms 1 and 8. Journaled in bearings in the upper ends of the arms 7 and 8, but held against endwise movement therein, is a spindle 9, which carries, at one end, a driving wheel l0 adapted, at certain times, to contact and be driven by a suitable driving member I I. This driving member may be the usual driving belt of a sewing machine or any other suitable member which will transmit continuous rotary motion to the wheel I!) and spindle 9.

The end of the spindle opposite to that Which carries the driving wheel l0 projects beyond the bearing in the arm 8 and is reduced and squared as indicated at l2. This reduced end portion of the spindle is adapted to have thread T wound thereon to form a cop C as indicated in Fig. 1. The outer extremity of the reduced portion l2 of the spindle carries a bunch of closely nested wires to between which the beginning end t of the thread T may be inserted to cause the thread to be wound on the spindle by rotation of the latter.

Journaled for oscillation and endwise movement in the lower portions of the arms I and 8, parallel to the spindle 9, is a bar l3 to the outer free end of which is secured a block It which carries an upstanding thread-laying arm l5.

' This arm carries a thread-retaining wire clip l6 and is formed at its upper end with a threadguide in the form of a notch ll.

Mounted in the upstanding arm I of the frame F, and held thereon by a set screw I8, is a pin ratio of the pinion 23 to the gear 22 is slightly greater than 1 to 2. Specifically, the pinion 23 preferably is provided with thirty-six teeth while the gear 22 has seventy-one teeth; thus the gear 22 and the cam 2| carried thereby, are given slightly more than one rotation for each two rotations of the spindle 9 and pinion 23. Stated conversely, the spindle 9 has slightly less than two rotations for each complete rotation of the gear 22 and the cam 2|. The spindle 9 is held against endwise movement relative to the frame F by the hub of the driving wheel I9 and the gear 22 engaging opposite sides of the arm 1 of the frame.

Pivotally mounted on a horizontally disposed pin 25 carried by the arm 8 of the U-shaped frame F, is a bell-crank lever L having a substantially horizontal arm 26 and a substantially vertical arm 21. The arm 26 of the bell-crank lever L engages, and is actuated by, the periphery of the cam 2|. Preferably, but not necessarily, contact between the arm 26 and the cam 2| is effected through the medium of a ballroller 28 carried by the arm. This construction reduces the friction between the cam and the arm and effects easier and smoother action. The arm 21 of the lever L carries an extension piece 29 which has its lower end pivotally connected, at 30, to one end of a horizontally disposed link 3|. pivoted, at 32, to the side of a horizontally dis posed U-shaped yoke 33 journaled on the bar |3 at opposite sides of

collars

34 and 35 secured upon the bar. From the foregoing it will be understood that rotation of the cam 2| will effect oscillation of the bell-crank lever L which, in turn, will effect endwise reciprocation of the link 3|, yoke 33, bar |3, and lateral movement of the thread-laying arm |5, while permitting the bar I3 and arm IE to be turned relative to the yoke 33. A coil spring 36, connected at one end to the arm 8 of the frame F and at its other end to an extension 33 of the yoke 33, tends to shift the yoke, the link 3| and the lower end of the arm 21 of the bell-crank lever L to the left, as seen in Fig. 1, and thereby maintains the ballroller 28 in contact with the periphery of the cam 2|.

The bar l3 and the thread-laying arm l are urged to turn in a counterclockwise direction, as seen in Fig. 2, by the action of a coil spring 31 which is connected, at one end, to an extension l9 of the pin l9 and, at its opposite end, to a trip-finger 38 carried by the bar l3. Thus when the machine is out of operation, the upper portion of the arm l6 rests against the squared portion l2 of the spindle upon which the thread is to be wound.

When the machine is to be put into operation the thread T is passed from a suitable source of supply, through a tension device 39, carried by the base I, through a thread-guide 40, beneath the thread-retaining wire clip |6, through the thread-guiding notch H in the upper end of the arm I 5, and the end portion t thereof is inserted betweeen and gripped by the wires w at the free end of the spindle. Rotation of the spindle and endwise reciprocation of the bar l3 and lateral movement of the arm I5 cause the thread to be wound helically about the spindle as hereinbe- The other end of the link is fore described. As the cop C is wound the upper end of the arm I5 is pressed upon the periphery of the cop and is gradually moved outwardly from the spindle as the cop increases in diameter, turning the bar l3 about its axis.

The machine is started by tipping the frame F rearwardly on the pintles 5, in opposition to the pressure of a coil spring 4| seated in a recess 4|=- in the rear portion of the frame arm 1 and bearing upon the base thereby causing the drive wheel It] to be shifted from the position illustrated in dotted lines in Fig. 4 to the position shown in full lines in that figure. This causes the periphery of the wheel to be moved into driving contact with a suitable driving element such, for example, as the belt Locking means is provided for maintaining the frame in this position, in opposition to the spring 4| until the cop has been wound to a predetermined diameter. This means comprises a plunger 42 (see Fig. '7) mounted in a vertically disposed bore 43 in the forward portion of the lower end of the frame arm 1. A coil spring 44 also located in the bore 43 and surrounding a reduced stem portion 42 of the plunger 42 depresses the plunger and maintains the lower end in contact with the base The portion 42 of the plunger 42 is slidingly fitted in a reduced bore 45 and carries a still further reduced portion 42 A horizontal bore 46 also is formed in the frame arm 1 and intersects the bore 45. Slidingly mounted in the bore 46 is an abutment member 41 having a vertical bore 48 through which the portion 42 of the plunger 42 projects. A coil spring 49 surrounding a portion 41 of the abutment member bears, at one end, against the arm 1 and at its opposite end against a head 41 formed on the member 41. This spring normally urges the abutment member 41 to the position shown in Fig. 7 in which the lower surface of the member overlies and engages a shoulder 42 provided at the upper end of the portion 42 of the plunger 42, while the upper surface thereof is engaged by the upper wall of the bore 46. In this position of the parts there is an unyielding obstruction between the top wall of the bore 46 in the arm 1 and the base I, which prevents the frame F from being tipped forwardly, about the pintles, 5, by the spring 4|, Thus the frame is held in operative position with the wheel I0 in contact with its driver As hereinbefore stated, during winding of the cop the bar I3 and the trip-finger 38 carried thereby are reclprocated back and forth while the arm l5, hearing at its upper end against the cop, causes them to be slowly turned clockwise, as seen in Fig. 2. During these reciprocations the free end of the trip-finger 38 passes idly beside and beyond the head 41' of the abutment member 41. When the cop has attained a predetermined diameter, the arm |5, bar I3 and tripfinger 38 have been turned sufficiently to shift the end of the trip-finger into alignment with shoe 50, perferably of leather, carried by an upstanding lug 5| formed on the base I, as shown in dotted lines in Fig. 4. The lug 5i also supports the thread-tension 39 hereinbefore mentioned. The machine comes to rest with the locking elements in the positions shown in Fig. 8.

The wound cop may be removed from the squared portion 12 of the spindle 9 by shifting it axially of the spindle and off the free end thereof. This may be accomplished by the aid of a manually actuable cop-shifting member comprising a bell-crank lever E fulcrumed at f against the side of the frame arm 8. One arm and the fulcrum f of the lever E are normally maintained in contact with the arm 8 by the action of a coil spring 52 interposed between the lever and the head of a screw 53 which passes freely through an aperture in the lever and is threaded into the arm 8. The lever E comprises an upstanding arm 54, having a bifurcated upper end 5d which straddles the spindle 9 and is adapted to engage the inner face of the cop C, and a horizontally disposed manually engageable arm 55 by means of which the operator may swing the lever E counterclockwise, as seen in Fig. 1 to shift the cop along the spindle, as indicated in dotted lines in that figure.

To facilitate severing the completed cop from the thread T, a thread cutter 56 is secured upon the arm 55 of the lever E. The operator may readily pull the thread into contact with the thread-cutter to sever the thread as she removes the cop from the free end of the winding spindle.

After a cop has been wound and the machine brought to rest automatically, as hereinbefore described, the operator may initiate a new winding cycle by first placing the free end of the thread T between the wires 20 and then swinging the frame F clockwise as seen in Fig. 4 to shift the wheel l0 into contact with the driver I I. This may be effected by pushing on a thumb piece 51 carried by the forward end of the pin 25. During this swinging movement of the frame F, the abutment member 4'1 moves upwardly along the stem portion 42 of the plunger 42, which latter is maintained in its downward position by the spring 44. As the under side of the abutment member 41 clears the shoulder 42 of the plunger, the spring 49 shifts the abutment member to the left (Figs. 7 and 8) and again places the member 41 above the shoulder 42 as shown in Fig. 7 to maintain the machine in operation.

Having thus set forth the nature of the invention, what I claim herein is:

1. A cop winding machine comprising a base; a frame pivotally mounted on said base; spring means urging said frame to an inoperative position; locking means working in opposition to said spring means to hold said frame in an operative position; a rotary spindle journaled in said frame and having a thread-receiving end portion designed to have a thread wound thereon; a slide-bar mounted in said frame; a threadlaying finger carried by said slide-bar and having a thread-guide movable adjacent the threadreceiving portion of said spindle; means actuated from said spindle to shift said slide-bar and thread-guide lengthwise of said spindle to cause a thread to be wound helically about the spindle; and means including a trip-finger and a movable abutment actuated thereby actuated by said thread-laying finger, when the thread wound on said spindle has reached a predetermined diameter, to trip said locking means and permit said 6 frame to be moved to an inoperative position by said spring means.

2. A cop winding machine comprising a base; a frame pivotally mounted on said base; a spindle journaled in said frame; a driving wheel on said spindle; spring means urging said frame to a position in which said wheel is out of driving contact with a driving element; locking means working in opposition to said spring-means to hold said frame in a position in which said wheel is in contact with said driving element; a slidebar mounted in said frame; a thread-laying finger carried by said slide-bar and having a thread-guide movable adjacent said spindle; means including a rotary cam and a bell-crank lever actuated thereby to shift said slide-bar and thread-guide lengthwise of said spindle during the rotation of the spindle to cause a thread to be wound helically about the spindle; and means including a trip-finger carried by saidslide-bar and rendered effective by said thread-laying finger, when the thread wound on the spindle has reached a predetermined diameter, to trip said locking means and permit said frame to be moved to a position in which said driving wheel is out of contact with said driving element.

3. A cop winding machine comprising a base; a frame pivotally mounted on said base; a spindle journaled in said frame; a driving wheel on said spindle; spring means urging said frame to a position in which said Wheel is out of contact with a driving element located adjacent thereto; locking means working in opposition to said spring means to hold said frame in a position in which said wheel is in contact with said driving element; a stationary brake member carried by said frame adjacent said driving wheel; a slide-bar mounted in said frame; a threadlaying finger carried by said slide-bar and having a thread-guide movable adjacent said spindle; means to shift said slide-bar and threadguide lengthwise of said spindle during the rotation of the spindle to wind a thread helically about the spindle; and means carried by said slide-bar and rendered effective, when the thread wound on said spindle has attained a predetermined diameter, to trip said locking means and permit said frame to be moved to a position in which said driving wheel is out of contact with said driving element and in contact with said brake member.

4. The combination with a cop winding machine, as set forth in claim 1, of a lever fulcrumed on said frame and having a cop-engaging portion located adjacent the thread-receiving end portion of the spindle; spring means acting on said lever to maintain said cop-engaging portion out of contact with the thread wound on said spindle; and a manually engageable portion formed on said lever by means of which the lever may be turned about its fulcrum to cause the cop-engaging portion thereof to engage a wound cop and shift it lengthwise of said spindle to remove the cop from the spindle.

5. The combination with a cop winding machine, as set forth in claim 1, of a bell-crank lever fulcrumed on said frame and having a bifurcated portion straddling the thread-receiving end portion of the spindle and a horizontally disposed finger portion located below the axis of the spindle; spring means acting on said bellcranl: lever to maintain said bifurcated portion out of contact with the thread wound on the spindle, said lever being adapted to be turned about its fulcrum to cause said bifurcated end to engage a wound cop on the spindle and to shift it lengthwise of the spindle to remove the cop from the spindle; and a thread-cutter carried by said bell-crank lever.

6. A cop winding machine comprising a base; a frame pivotally mounted on said base; spring means urging said frame to an inoperative position; locking means, including a push button, working in opposition to said spring means to hold said frame in an operative position; a rotary spindle journaled in said frame and having a thread-receiving end portion adapted to have a thread wound thereon; a bar mounted for oscillation and endwise translation in said frame; a thread-laying finger carried by said bar and having a thread-guide movable adjacent to and lengthwise of the thread-receiving portion of said spindle; means actuated from said spindle to shift said bar and finger lengthwise of said spindle to cause a thread to be wound helically about the spindle; a spring urging said finger into contact with the thread wound on the spindle; and a trip-finger carried by said bar, and designed when the thread wound on said spindle has reached a predetermined diameter, to engage said push button and trip said locking means, thereby to permit said frame to be moved to an inoperative position by said spring means.

'7. A cop winding machine comprising a frame; a power-driven spindle journaled in said frame and held against endwise movement relative thereto; means carried by said spindle to hold a thread-end; a cam journaled on said frame and driven from said spindle; a bell-crank lever journaled on said frame and having a portion engag- 8 ing said cam to elfect oscillations of said bellcrank lever from the rotations of said cam; a slide-bar rockably and endwise slidably mounted in said frame; a thread-laying finger carried by said slide-bar and having a thread-guide movable adjacent and lengthwise or said spindle; means connecting said bell-crank lever with said slide-bar so as to shift said slide-bar and threadguide lengthwise of said spindle by' the oscillations of said bell-crank lever thereby to wind thread helically about said spindle; spring means for rocking said slide-bar about its longitudinal axis in a direction to urge said thread-guide toward said spindle and against the periphery of the thread cop; and means rendered operable by a lengthwise movement of said slide-bar whenever said thread-guide is in a predetermined angular position relative to said spindle to brake said spindle.

ALFRED R. WOOD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 495,990 Muller Apr. 25, 1893 1,160,604 Hemleb Nov. 16, 1915 1,292,560 Ashworth Jan. 28, 1919 1,308,529 Peterson July 1, 1919 1,387,141 Flanagan Aug. 9, 1921 2,209,840 McHugh July 30, 1940 2,455,638 Adler Dec. '7, 1948 2,492,412 Bauer Dec. 27, 1949